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Preiskalkulator (Invoice Calculator)

A standalone desktop app for Windows, Mac and Linux that automatically creates quotes and legally compliant invoices – including VAT calculation, sequential invoice numbering, and optional automatic email delivery. Set up your price list once, then just a single click per customer request.

  • Runs entirely locally – no cloud, no ongoing costs, no subscription
  • Automatic net/VAT/gross calculation based on your tax rate
  • Sequential, compliant invoice numbering per German tax law
  • Professional PDF layout with your company details, bank info, tax number
  • Optional automatic email delivery straight to your customers
  • Your data stays exclusively on your own computer
€39
one-time, no ongoing costs

After purchase you'll automatically receive an email with a download link, installation guide (PDF), and license agreement.

1

Purchase

Pay directly in the cart – securely via Stripe, no account needed.

2

Download

You'll instantly receive an email with the download link and an illustrated guide.

3

Get started

Enter your company details and price list once – then create finished invoices in seconds.